POST /?a=1&b=2 HTTP/1.1
Host: localalhost
Content-type: application/x-www-form-urlencoded
Content-length: 7

c=3&d=4

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curl -v "localhost:3000?a=1&b=2"
curl -v -X POST -d "c=3&d=4" "localhost:3000?a=1&b=2"
curl -v -d "c=3&d=4" "localhost:3000?a=1&b=2"

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Invoke-RestMethod -Method POST -Body "c=3&d=4" -Uri "http://localhost:3000?a=1&b=2"
